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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 76064Generated: October 26, 2026

Hydrochloric Acid → HCID 66615865, compound

https://huagongshe.com/reaction/76064

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-ChlorobenzoxazoleHCID 11986—
ReactantMethyl 2-((1r,4r)-4-(4-(5-aminopyridin-2-yl)phenyl)cyclohexyl)acetateHCID 66615773—
SolventEthyl AcetateHCID 8857—
Solvent1,4-DioxaneHCID 31275—
Solventtert butanol DMEHCID 86596206—
ProductHCID 66615865HCID 66615865—

Reaction Conditions

Temperature120 °C

Reaction Steps

65 mg of {4-[4-(5-Amino-pyridin-2-yl)-phenyl]-cyclohexyl}-acetic acid methyl ester and 0.3 Ml of 2-chlorobenzoxazole were dissolved in 1.5 Ml of t-BuOH/DME (1:1) in a 5 Ml microwave tube with a stirring bar. 0.1 Ml of 4N—HCl in dioxane was added and the reaction vessel was sealed and heated at 120° C. for 2 hours by microwave. The reaction was diluted with ethyl acetate and the resulting precipitates were filtered and washed with ethyl acetate. The filter cake was dried by air in the suction funnel and analyzed by 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.2 (s, 3H) 1.5 (s, 2H) 1.8 (s, 6H) 2.3 (d, J=6.8 Hz, 2H) 3.6 (s, 4H) 7.2 (m, 1H) 7.3 (m, 1H) 7.3 (d, J=8.3 Hz, 2H) 7.5 (d, J=13.9 Hz, 2H) 8.0 (m, 3H) 8.4 (m, 1H) 8.9 (d, J=2.3 Hz, 1H) 11.0 (s, 1H); (M+H)+442.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835451B2
Source datasetuspto-grants-2014_09
ORD IDord-a6e241c19dd148e79006170d84e1fa52
Source noteuspto-grants-2014_09